The National Insulator Association has had two patches in its history.  The first one (shown at the top) is a two-color, slightly oval patch with a yellow border surrounding a blue ring.  Around the blue ring are the words "NATIONAL INSULATOR ASSN./ MEMBER" sewn in a yellow thread.  At the center of the patch, there is blue CD 201 on a yellow background.  The patch is 2-7/8 inches wide and 3-1/8 inches tall.

The second patch is six-color rectangular patch with a red border and a light blue background.  The words "NATIONAL/ INSULATOR/ ASSOCIATION" are sewn in dark blue with the "T" in "INSULATOR" being formed by a brown pole.  Four green insulators can be seen on the pole and two black wires run to two of the insulators.  The patch is 3-1/2 inches wide and 2-3/4 inches tall. 

Cost:

The second patch, originally cost is $4 plus 50 cents postage but is no longer available.

History:

The top patch is the oldest of the two and is no longer for sale.